diff --git a/library/Mvp.Xml/XInclude/XIncludingReader.cs b/library/Mvp.Xml/XInclude/XIncludingReader.cs
index da8dfc5..ccd76fe 100644
--- a/library/Mvp.Xml/XInclude/XIncludingReader.cs
+++ b/library/Mvp.Xml/XInclude/XIncludingReader.cs
@@ -1597,7 +1597,9 @@ private bool ProcessInterDocXmlInclusion(string href, string xpointer)
 				object resource;
 				try
 				{
-					resource = xmlResolver.GetEntity(includeLocation, null, null);
+					resource = xmlResolver.GetEntity(includeLocation, null, typeof(Stream))
+						?? xmlResolver.GetEntity(includeLocation, null, typeof(TextReader))
+						?? xmlResolver.GetEntity(includeLocation, null, typeof(XmlReader));
 				}
 				catch (Exception e)
 				{